abundantly in Samoa and am satisfied that it is the only form on the island. 

 but I have seen this Samoan plant in the museums under several names. 7 As 

 we have previously stated, Polystictus flabelliformis may be considered the 

 extreme form at the other end of the arc from Polystictus xanthopus, and 

 all the intermediate "species" between can be held to be connecting forms. 



RELATED SECTION, MICROPORUS-APUS. 



If I were dividing Polystictus into genera I should hold a stipe as the first 

 badge of a genus, but like all characters I would want to disregard it at times. 

 There is one species of sessile fungi that accords with the section Microporus 

 in every character except that it has no stipe. We shall consider it here. 



Fig. 348 

 Polystictus pterygodes. 



POLYSTICTUS PTERYGODES (Fig. 346). Pileus sessile.. 

 thin, smooth, rigid, dark bay color. Pores minute, pale or white. 



Pieces of the pileus of Polystictus pterygodes and Polystictus xanthopus 

 could scarcely be distinguished. With the exception of stem characters they 

 are practically the same. The context of pterygodes is a little thicker. Poly- 

 stictus pterygodes was originally from Africa, but it is a rare plant. Xo type 

 exists, but there is a good illustration and Fries' description. Recently speci- 

 mens have reached Europe from the Philippines that accord with both Fries' 

 description and figure. It is also known, but rarely, from South America. H 

 I have recently received specimens from Rev. Rick, Brazil. 



NOMINA CONSERVANDA. 



We give the following statistical matter with reference to names used in 

 this article, as it is usually held to be of much more importance than the identity 



but 



Mauritius (Fig. 344) was densely 



ith pubescent zones 



The type form fr 



s it occurs in Samoa it is much smoother, with only a few pubescent zones, and they 

 not strongly developed (Fig. 3.45). But the pileus of the Samoan form is never entirely 

 smooth, hence I would refer it to flabelliformis rather than to affinis. 



8 Fries described Polyporus modestus as named by Kunze in Weigel's exsiccatae, from 

 Surinam. The type is therefore the one in Fries' herbarium at Upsala. The specimen in 

 Weigel's exsiccatae at Kew is not the same as the one at Upsala, but as Berkeley thought it 

 was the same, Polyporus modestus in the sense of Berkeley (excepting his very early deter- 

 mination) is not the same as Polyporus modestus in the sense of Fries. Polyporus modestus 

 of Berkeley is Polyporus pterygodes of Fries, and Polyporus modestus of Fries was Polyp >ms 

 r.lbo-cervinus of Berkeley, and also other "new species" of his, if I mistake not. 



56 



